Ender's Game, written by Orson Scott Card, is a classic science fiction novel that follows the story of Andrew "Ender" Wiggin, a young boy who is recruited by the military to train for a future alien invasion. As Ender undergoes rigorous training and faces moral dilemmas, the novel explores themes of war, leadership, and the consequences of violence. With its compelling characters and thought-provoking plot, Ender's Game has become a beloved and influential work in the genre.